What are some examples of cache coherence protocols?
Cache coherence protocols are essential for maintaining consistency in multi-core processors. Some examples include MESI, MOESI, and MSI.
Can you explain how the MESI protocol works?
Sure! The MESI protocol stands for Modified, Exclusive, Shared, and Invalid. It helps manage the states of cache lines to ensure that all caches have a consistent view of memory.
What are the advantages of using MOESI over MESI?
MOESI adds an 'Owned' state, allowing a cache to hold a line that is shared with others while still being able to modify it, reducing memory traffic.
Are there any real-world applications of these protocols?
Yes, these protocols are widely used in modern multi-core processors, such as Intel and AMD CPUs, to enhance performance and efficiency.
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